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- Keywords pendimethalin;brominating reaction;N-glucoside;synthesis; 二甲戊乐灵;溴代反应;葡萄糖氮苷;合成;
- The kinetics of the bromination reaction in the preparation of linear alkyl brominated polyether by thermal catalysis is reported in this paper. 本文报导热催化法制备烷基直链型溴代聚醚的溴化反应动力学。
- Isomerization occur during bromine reaction, that is mean secondary allylic configuration changes into primary allylic configuration. 在溴化反应过程中存在分子结构重排,即溴代仲位烯丙基构型向溴代伯位烯丙基构型发生转化。
- The oxygenizement reaction and bromination reactions of the process are improved. 其中第二步是以氯仿作溶剂,新洁尔灭作相转移催化剂,在室温下进行反应。
- The optimum oxidant for the formylation reaction of Knorr pyrrolr was ceric ammonium nitrate(yield 91.5%) and the optimum solvent for the bromination reaction was methanol(yield 58%). 同时对第二步中氧化反应中的氧化剂以及第四步溴化反应中的溶剂进行了研究。结果表明;氧化反应中的最佳氧化剂为硝酸铈铵;产率达到91.;5%25;溴化反应中的最佳溶剂为甲醇;反应产率达到58%25。
- Could I ask for your reaction to this policy? 我能问一下您对这个政策的反应吗?
- A reactor is a container for chemical reaction. 反应器是进行化学反应的容器。
- I'm displeased at your reaction. 我对你的反应很不满意。
- The forces of reaction made reform difficult. 反动势力给改革造成了困难。
- His reaction on this matter is unexpected. 没料到,他对这件事的反应是这样的。
- Ethyl 4 bromo 2 butenoate,a medicine intermediate,was prepared using 2 butenoic acid as main raw material through esterification and bromination reactions. 以2丁烯酸为原料,通过酯化和溴代反应研制了药物中间体4溴2丁烯酸乙酯。
- A sharp reaction; a repercussion. 强烈反应后果,影响
- Their reaction was one of qualified praise. 他们的反应是一种有保留的称赞。
- His initial reaction was one of shock. 他最初的反应是震惊。
- The reaction of the audience was instantaneous. 观众即刻有了反应。
- What was his reaction to the plan? 他对这个计划有什么反应?
- The medicine produced a violent reaction. 这药物引起了剧烈的反应。
- My reaction will be to partake in the speech competition. 我的看法倒是要参加这次演说比赛。
- What was his reaction to the news? 他对这消息的反应如何?
- His reaction of swiftness surprised us. 他快速的反应能力让我们吃了一惊。